Triggering lights with Eos 5DmkII and Ikelite housing

This is my second thread on this forum in six month. The first was to ask for help for my choice of underwater housing for my canon 5DmkII. You helped me to chose the Ikelite model. I use it in artificial waters (swimming pools) for portraits. My avatar is an ilustration of it made by my girflriend with a nikon coolpix AW100. my gallery can ben found here :